radiation-oncology
(3)
Per Langoe
Per Langoe is the CEO of GT Medical Technologies, the Tempe, Arizona company behind GammaTile, an FDA-cleared radiation therapy tile that gets sewn into the brain the same moment a tumor is removed. He arrived in February 2024 after co-founding and selling Palette Life Sciences to Teleflex for $600 million, bringing more than two decades in radiation oncology commercialization from Pharmacia, Q-Med, Galderma and Nestle Skin Health.
Justin Bekelman
Justin Bekelman is the co-founder and CEO of Daymark Health, a Philadelphia-based value-based oncology company building a tech-enabled medical group that wraps clinical, mental health, and social support around people facing cancer. A radiation oncologist with roughly 200 published research articles, he spent two decades at the University of Pennsylvania, where he founded the Penn Center for Cancer Care Innovation at the Abramson Cancer Center before leaving to build a company that contracts directly with health plans to take on total cost of care. Daymark launched publicly in 2025 with $11.5M in seed funding and closed a $20M Series A in September 2025.
John Adler
John R. Adler Jr., MD is a neurosurgeon, inventor, and serial entrepreneur best known for inventing the CyberKnife robotic radiosurgery system at Stanford University - a device that has treated over two million patients worldwide. Now CEO of ZAP Surgical Systems in San Carlos, California, he leads development of the ZAP-X gyroscopic radiosurgery platform: a self-shielded, vault-free system that brings precision brain radiosurgery to outpatient settings globally. A 2025 inductee into the National Inventors Hall of Fame, Adler is also co-founder and former editor-in-chief of Cureus, an open-access medical journal acquired by Springer Nature. With over 300 peer-reviewed publications and 20+ US patents, he holds the Dorothy and TK Chan Professorship Emeritus at Stanford.